/Engine/Source/Runtime/InteractiveToolsFramework/Public/BaseGizmos/ParameterSourcesFloat.h
typedef TMulticastDelegate_TwoParams< void, [IGizmoFloatParameterSource](API\Runtime\InteractiveToolsFramework\BaseGizmos\IGizmoFloatParameterSource) *, [FGizmoFloatParameterChange](API\Runtime\InteractiveToolsFramework\BaseGizmos\FGizmoFloatParameterChange) > FOnGizmoFloatParameterSourceChanged